Window-shade catch-pulley.



A; H. Hovfimz A.'N.-PR1Bs. WINDOW SHADE GATGH PULLY.

APPLICATION PILED JAN. 28. 1909.

O. W O O 9, W 9 w.

UNITED STATES PATEN T OFFICE. I

ALBERT I-IOVER AND ALBERT N. FRIES, OF CINCINATI, OHIO.

WINDOW-SHADE CATCH-PULLEY.

To all whom 'it may concern:

Be it known that we, Atnn'r H. HOVER and ALBERT N. FRIEs, citizens ofthe United States, residing at Oincinnati, in the county of Hamilton andState of Ohio, have invented certain new and useful Improvcments inVindow-Shade Oatch-Pulleys, of which the following is a specification.

Our invention relates to improvements in catch pulleys for window shadesand similar purposes.

One of its objects is to provide such a pulley mounted in a supportingframe capable of being attached to its support in any of the variouspositions in which circumstances may require the catch pulley to belocated, and also in such positions to receive and guide the cord..

Another object is to provide a catch pulley supporting frame adapted tobe employed without change either as a support for right or left handpulleys.

Another object is to provide' a catch pulley supporting frame havingimproved means to guide the cord.

It further4 consists in certain details of form, combination, andarrangement, all of which will be more fully set forth in thedescription of the accompanyingl drawings, in which,

Figure 1 is a front elevation of a window frame, curtain and fixtures,illustrating one method of application of our invention. Fig. 2 is anenlarged perspective view of one of our improved catch pulleys. Fig. 3is an enlarged perspective View of the reverse side of the catch pulley.F ig. 4 is a central Vertical section through the same, on line Vt'---2of Fig. 3, and provided with a right hand pulley. Fig. 5 is a similarview, with a left hand pulley. F ig. 6 is a sectional detail on linem-a; of Fig. 1. Figs. 7 and are sectional details of lower catch pulleysattached at an angle. Fig. is a sectional detail ofthe lower portion ofa show window and catch pulley attached thereto.

In the accompanying drawings Fig. 1 illust'rates one of severalapplications of our invention to use. A, represents an ordinary windowframe, a, the upper and a', the lower window sashes, and az, the windowsill. B, represents a window Shade which is adapted to be wound upon aroller, b, which is carried in brackets, 72', 62, which are carried by across bar, C. The cross bar, C, is suspended by a cord, D from a catchpulley, H,

Specification of Letters Patent.

Patented Oct. 12, 1909.

Application filed January 28, 1909. Serial No. 474,872.

at the top of the window frame. The opposite end of the cord, D, ispassed through a catch pulley, H', at the bottom of the window frame,and attached to an eye, e, carried by the lower cross-bar, E, of theshade, B. Thus the cross-bar, C, may be adjusted to any desired heightby means of the portion of the cord passing through the catch pulley, H,and the cross bar, E, can be adjusted to any desired height by means ofthe portion of cord, D, passing through the catch pulley, H'. In orderto hold the shade in the desired position, the pulley, H, should be aright hand pulley; that is, should have its spiral grooves arranged toact to lock the cord when turning in a right hand direction, and thepulley, H', should be a left hand pulley adapted to lock the cord whenrotating in the opposite direction.

As shades employing catch pulleys are adapted to be applied to transoms,show windows, and in a variety of places where the points of attachmentfor'the'catch pulleys are at various angles and where the cord is tolead to or from the catch pulleys at Varying angles, we provide a catchpulley and its supporting frame adapted to be con- Veniently attached inany position or at any desired angle, and to receive the cord from anydirection desired, thus obviating the necessity of providing a greatvariety of catch pulleys each especially adapted for a single position.

Our improved catch pulley comprises a pulley or roller, H2, which isjournaled upon an axle or pin, 7a. Pulley, H2, is provided with acentral encircling groove, g, from which on each side are one or'morediverging and gradually diminishing grooves, which diverging grooves arepreferably roughened 01' serrated to assist in gripping the cord. Thepulley, H2, is supported by means of its aXle, 7a, in a frame orhousing, HS, which has two faces or plates, 7b, 71/, preferably at rightangles to each other and two end plates, 72,2, 72,3, which support theends of axle, 7a, and limit the endwise movement of pulley, Hg, thereon.Two ears, ht, 72,5, projecting from plate, 7b, serve as a means ofattaching the frame, Hit, in position, preferably by means of screwspassing through perfora-tions in ears, 72,4, 72,5. The plates, 72,, h',are preferably projected at 72,6, to provide sufficient metal to firmlyunite the right and left portions of the frame around the ends of aslot, K, which extends from the junction of plates, h, h', partly acrosseach platein line with the central groove of pulley, H2. This slot, K,serves as a passage and also as a guide for the cord in some positions,such, for instance, as in Figs. Sand 9. w The plates, 7a., 72/, on theirinside, facing the pulley, are preferably each provided with centralgrooves, h7 and diminishing grooves, hs, on each side. The centralgrooves, hT,'and slot K, provide sufiicient room for the free passage ofthe cord in the central groove, g, while the grooves, 71-8, serve inconjunction with the grooves, g', to catch, wedge, or grasp the cordwhen the cord is drawn sidewise out of the central groove, 9.' W

During the process of manufacture, part of the pulleys are inserted inthe housings to a'ct right-handedly, and the balance are reversed so asto act left-handedly. F ig. 8 shows the manner of attaching the catchpulley to a show window, so that the Shade may beperated from the rearof the platform, M, usually projecting backward from the window. c Thecord from the lower part of the Shade is passed down through an openingin platform, M, thence over an idler pulley, m, and thence to` lowercatch pulley, H4, which it reaches through the slot, K. Fi'g. 6' showsthe usual arrangement of the catch vpulley and coi'd at the top of awindow frame. Figs. 7 and 9 show the catch pulleys set at difierentangles on a window sillvor similar part.

The catch pulley herein illustrated can be set in any of the severalpositions frequently required for window shades, and in each position soas to be conveniently operated. The grooves, 72,7, and slot,K,furtherserve to guide and retain the cord in the groove, g, ecept at theforward edge of plates, h., h', where it is designed to be divertedtherefrom to lock the cord.

The device herein illustrated and described is capable of considerablemodification without departing from the principle of our invention.

What we claim is:

1. In a device of the character indicated, a pulley having an encirclinggroove and a diverging and diminishing groove, a housing incl'osingsubstantially one half of the face and both ends of said pulley, saidhousing having diminishing grooves at opposite edges in position toco-act with the diverging groove of said pulley whether set right orleft to catch a cord, an axle for said pulley carried by said housing,and means to attach said housing in position.

2. In a device of the Character indicatcd a pulley having a centralencircling groove` and converging and diminishing grooves at oppositesides, a housing inclosing substantially one half of the face and bothends of said pulley, said housing having diminishing` grooves atopposite edges in position to co-act with the diverging grooves of saidpulley whether set right or left to catch a co'rd, an aXle for saidpulley carried by said housing, and means to attach said housing iuposition.

3. In a device of the character indicated a pulley having a centralencircling groove. and diverging grooves at opposite sides, a housinginclosing substantially one half of the face and both ends of saidpulley, said housing having central grooves at opposite edges oppositethe central groove of the pulley, and an intermediate slot through saidhousing opposite the central groove of said pulley, and diminishinggrooves at. opposite edges of said housing opposite the diverginggrooves of said pulley, and an aXle for said pulley carried by saidhousing.

4. In a device of the character indicated a pulley having a centralencircling groove` and diverging grooves at opposite sidcs, a housinginclosing substantially one half of the face and both ends of saidpulley, a slot in said housing opposite and in line with the centralgroove of said pulley, and diminishing grooves at opposite edgcs of saidhousing opposite the diverging grooves of said pulley, and an axle forsaid pulley carried by said housing.

5. In combination with a catch pulley having an encircling groove anddiverging grooves at opposite sides, a housing couiprising two platesformed integral and a t substantially right angles to each other withears at opposite ends to support the journal of said pulley, and a slotcrossing the junction of said plates in line with the encircling grooveof said pulley to serve as a passagc and guide for a cord.

In testimony whereof we have afi'ixed our signatures in presence of twoWitnesses.

ALBERT H. HOVER. ALBERT N. FRIES. IVitnesses AGNns MCCORMACK, C. IV.Mimis.

